Denis Hayes is president of the Bullitt Foundation and chairman of the board of trustees of the American Solar Energy Society. He was director of the federal Solar Energy Research Institute during the Carter administration and was national coordinator of the first Earth Day in 1970, and he now is chair emeritus of the International Earth Day Network.

Beyond the Limits of Earth Day: Turning Up the Heat on Climate

by denis hayes
This April marks the 40th anniversary of Earth Day, an event that has attracted millions to environmental causes. But winning passage of meaningful legislation on climate change requires more than slogans and green talk — it demands intense, determined political action.
READ MORE

Solar and Wind Power Held Hostage – Again

by denis hayes
Congress has repeatedly failed to extend the tax credits for renewable energy, which expire at the end of this year. The gridlock is discouraging investment in renewables and jeopardizing major solar and wind projects throughout the country.
READ MORE

Climate Solutions: Charting a Bold Course

by denis hayes
A cap-and-trade system is not the answer, according to a leading alternative-energy advocate. To really tackle climate change, the United States must revolutionize its entire energy strategy.
READ MORE

Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies.

Twitter: YaleE360
e360 on Facebook
Donate to e360
View mobile site
Bookmark
Share e360
Email newsletter
Subscribe to our feed:

About e360
Contact
Submission Guidelines
Reprints

South African photojournalist Adam Welz documents the harrowing relocation of six white rhinos to a region that has lost all its rhinos to poaching. View the gallery.

Opinion
Reports
Analysis
Interviews
e360 Digest
Podcasts
Video Reports

Biodiversity
Business & Innovation
Climate
Energy
Forests
Oceans
Policy & Politics
Pollution & Health
Science & Technology
Sustainability
Urbanization
Water

Antarctica and the Arctic
Africa
Asia
Australia
Central & South America
Europe
Middle East
North America

A Yale Environment 360 video explores Ecuador’s threatened Yasuni Biosphere Reserve with scientists inventorying its stunning forests and wildlife. Watch the video.

The latest
from Yale
Environment 360 is now available for mobile devices at e360.yale.edu/mobile.

In a Yale Environment 360 video, photographer Pete McBride documents how increasing water demands have transformed the Colorado River, the lifeblood of the arid Southwest. Watch the video.

Top Image: aerial view of Iceland. © Google & TerraMetrics.

The Warriors of Qiugang, a Yale Environment 360 video that chronicles the story of a Chinese village’s fight against a polluting chemical plant, was nominated for a 2011 Academy Award for Best Documentary (Short Subject). Watch the video.

Centre for Science and Environment

Environmental Health News

Environmental News Network